One of the other problem is when you have more then 5+ line, it becomes really hard to track the different lines. I have found out that a possible workaround is

One of the other problem is when you have more then 5+ line, it becomes really hard to track the different lines. I have found out that a possible workaround is to show the path data on mouseover: http://muyueh.com/see/nuk/efficiency.html http://muyueh.com/see/nuk/efficiency.html (Better turn down the sound) Using the button group in the left, you can zoom to different scale.